MAGNACHIP SEMICONDUCTOR Corp SEC filings MX
MAGNACHIP SEMICONDUCTOR Corp has 976 filings in SEC EDGAR's recent list, going back to Apr 26, 2005. Its latest annual report, Form ARS, was filed on Apr 30, 2026 for the period ended Apr 30, 2026. The latest quarterly report (Form 10-Q) was filed on Nov 5, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 4, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 424B3 | Prospectus | Oct 14, 2026 | — |
| S-3 | Shelf registration | Oct 5, 2026 | — |
| S-8 | Employee stock plan registration | Jul 10, 2026 | — |
| 424B5 | Prospectus supplement | Jun 17, 2026 | — |
| 424B3 | Prospectus | Jun 17, 2026 | — |
| S-3 | Shelf registration | Jun 12, 2026 | — |
| S-8 | Employee stock plan registration | Jun 23, 2023 | — |
| S-8 | Employee stock plan registration | Jul 15, 2020 | — |
| S-8 | Employee stock plan registration | Feb 21, 2020 | — |
| S-8 | Employee stock plan registration | Feb 22, 2019 | — |
| S-8 | Employee stock plan registration | Feb 22, 2018 | — |
| 424B7 | Filing | Aug 11, 2017 | — |
| 424B7 | Filing | Aug 9, 2017 | — |
| S-3 | Shelf registration | May 1, 2017 | — |
| S-8 | Employee stock plan registration | Feb 23, 2017 | — |
| S-8 | Employee stock plan registration | Feb 26, 2016 | — |
| S-8 | Employee stock plan registration | Feb 17, 2015 | — |
| 424B3 | Prospectus | Oct 18, 2013 | — |
| S-4 | Registration for a merger or exchange | Sep 25, 2013 | — |
| 424B7 | Filing | Sep 11, 2013 | — |
| 424B7 | Filing | Sep 9, 2013 | — |
| S-8 | Employee stock plan registration | Feb 22, 2013 | — |
| 424B7 | Filed pursuant to rule 424(b)(7) | Feb 6, 2013 | — |
| 424B7 | Filed pursuant to rule 424(b)(7) | Feb 4, 2013 | — |
| 424B7 | Filed pursuant to rule 424(b)(7) | May 2, 2012 | — |
| 424B7 | Filed pursuant to rule 424(b)(7) | Apr 26, 2012 | — |
| S-8 | Employee stock plan registration | Apr 13, 2012 | — |
| S-3 | Shelf registration | Apr 13, 2012 | — |
| 424B3 | Prospectus | May 4, 2011 | — |
| 424B3 | Prospectus | Mar 29, 2011 | — |
| S-8 | Employee stock plan registration | Mar 16, 2011 | — |
| POS AM | Pre-effective amendment no. 1 to post effective amendment no. 1 | Mar 14, 2011 | — |
| 424B4 | Prospectus | Mar 11, 2011 | — |
| S-1/A | Amended registration statement | Mar 10, 2011 | — |
| POS AM | Post-effective amendment no. 1 to form s-1 registration statement | Feb 18, 2011 | — |
| S-1/A | Amended registration statement | Feb 18, 2011 | — |
| S-1/A | Amended registration statement | Feb 1, 2011 | — |
| 424B3 | Prospectus | Nov 8, 2010 | — |
| S-1/A | Amended registration statement | Nov 4, 2010 | — |
| 424B3 | Prospectus | Oct 18, 2010 | — |
| 424B3 | Prospectus | Oct 18, 2010 | — |
| S-1/A | Amended registration statement | Oct 14, 2010 | — |
| S-4/A | Amendment no. 2 to registration statement on form s-4 | Oct 14, 2010 | — |
| S-1/A | Amended registration statement | Oct 4, 2010 | — |
| S-1/A | Amended registration statement | Oct 4, 2010 | — |
| S-4/A | Amendment no. 1 to registration statement on form s-4 | Oct 4, 2010 | — |
| FWP | Free writing prospectus | Sep 3, 2010 | — |
| S-1 | Registration statement | Aug 12, 2010 | — |
| S-4 | Registration for a merger or exchange | Aug 4, 2010 | — |
| FWP | Free writing prospectus | Jul 30, 2010 | — |
| FWP | Free writing prospectus | Jul 28, 2010 | — |
| FWP | Free writing prospectus | Jul 28, 2010 | — |
| S-1/A | Amended registration statement | Jun 16, 2010 | — |
| S-1/A | Amended registration statement | Jun 3, 2010 | — |
| S-1/A | Amended registration statement | May 21, 2010 | — |
| S-1/A | Amended registration statement | May 11, 2010 | — |
| S-1/A | Amended registration statement | Apr 20, 2010 | — |
| S-1 | Registration statement | Mar 15, 2010 | — |
| S-1/A | Amended registration statement | Mar 31, 2008 | — |
| S-1/A | Amended registration statement | Dec 26, 2007 | — |
| S-1 | Registration statement | Nov 14, 2007 | — |
| 424B3 | Prospectus | Jul 20, 2005 | — |
| S-4/A | Amendment no. 1 to form s-4 | Jul 18, 2005 | — |
| S-4 | Registration for a merger or exchange | Jun 21, 2005 | — |
Showing 64 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Semiconductors & Related Devices (SIC 3674)
- Listed as
- MX (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Cheongju-Si
- SEC filer status
- Accelerated filer, Smaller reporting company
- SEC CIK
- 1325702
- Former names
- MAGNACHIP SEMICONDUCTOR Corp (until Nov 5, 2026); MAGNACHIP SEMICONDUCTOR LLC (until Mar 8, 2011)
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.